What is the basic cause of induced e.m.f.?

The magnetic flux in a coil is phi = 4t^2 + 4t + 4 . What is the magnitude of induced e.m.f. at t = 3sec?

What is induced e.m.f.?

A coil of 100 turns each of area 0.1 m^2 is rotated at constant speed of 300 r.p.m. in a uniform magnetic field of induction 0.02 Wb//m^2 about an axis in the plane of the coil and perpendicular to the direction of the coil.Calculate the maximum value of induced e.m.f.

The self inductance of a coil is 5 H, a current of 1 A change to 2 A within 5 second through the coil. The value of induced e.m.f. will be

The magnetic flux linked with a coil, in webers is given by the equations phi = 3t^2 + 4t + 9 . Then the magnitude of induced e.m.f. at t =2 second will be

Whenever the magnetic flux linked with a coil changes,then an induced e.m.f. is produced in the circuit. This e. m. f. lasts

A straight conductor of length 0.4 m is moving with a velocity of 7m//s , in a magnetic field of induction 2 Wb//m^2 . The value of the maximum induced e.m.f. in the conductor is

A conducting circular loop is placed in a uniform magnetic field B = 0.025 T with its place perpendicular to the loop. The radius of the loop is made to shrink at a constant rate of 1 mms^-1 . What is the induced e.m.f. when the radius is 2cm?

Name the various methods to produce induced e.m.f.

A metallic wire coil is stationary in a uniform magnetic field. What is the e.m.f .induced in the coil?